Jörmungandr

When astronomers map the rotational velocities of a spiral galaxy, the classical mathematics dictate a violent, inevitable scattering. The stars trapped at the furthest edges of the galactic disc are moving far too fast; their orbital velocities refuse to drop off as they distance themselves from the luminous core. According to the standard laws of motion, centrifugal force should overcome the weakening gravity of the visible stars, shattering the galaxy and flinging its outer rim into the freezing vacuum of deep space. Yet, the architecture holds. The rotation curve flatlines at an impossible speed, proving that the light we observe is merely a fragile disc trapped inside a much heavier, invisible chassis.

To prevent the physical collapse of these spinning galaxies, an unseen, electromagnetically neutral halo of dark matter must encircle the outer rim, providing a massive, desperate gravitational grip. It is the thermodynamic equivalent of Jörmungandr, the World Serpent, cast into the lightless, freezing depths, grown so massive that it encircles the entire system, locking its jaws around its own tail in the dark. We cannot interact with it, but we are entirely dependent on its suffocating gravity. The invisible serpent provides the silent, crushing force that holds the visible universe together. If the dark matter ever loosens its grip, the rotation will tear the world apart.

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